42720285

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 70709760

約数和(自身を除く): 27989475

約数列:

[1, 3, 5, 15, 43, 107, 129, 215, 321, 535, 619, 645, 1605, 1857, 3095, 4601, 9285, 13803, 23005, 26617, 66233, 69015, 79851, 133085, 198699, 331165, 399255, 993495, 2848019, 8544057, 14240095, 42720285]

約数ペア:

[(1, 42720285), (3, 14240095), (5, 8544057), (15, 2848019), (43, 993495), (107, 399255), (129, 331165), (215, 198699), (321, 133085), (535, 79851), (619, 69015), (645, 66233), (1605, 26617), (1857, 23005), (3095, 13803), (4601, 9285)]